Nanoscale structural and mechanical characterization of a natural nanocomposite material:​ the shell of red abalone

Li, Xiaodong; Chang, Wei-Che; Chao, Yuh J.; Wang, Rizhi; Chang, Ming

Affiliations

¹Department of Mechanical Engineering, University of South Carolina, 300 Main Street, Columbia, South Carolina 29208

²Department of Mechanical Engineering, Chung Yuan Christian University, 22 Pu-Jen, Pu−Chung Li, Chung-Li (32023), Taiwan, Republic of China

³Department of Metals and Materials Engineering, University of British Columbia, 309-6350 Stores Road, Vancouver, BC, V6T 1Z4, Canada

Abstract and keywords

Nanoscale structural and mechanical characterization of the shell of a red abalone has been carried out. Cobble-like polygonal nanograins are basic building blocks that are used to construct individual aragonite platelets into a mother-of-pearl configuration known as nacre. The nanograin-structured aragonite platelets are not brittle in nature, but somewhat ductile. The deformability of the aragonite platelets together with the crack deflection, aragonite platelet slip, and organic adhesive interlayer contribute to the nacre's fracture toughness. Cracks formed in the outer prismatic layer of the shell do not show the crack diversion mechanism.

Keywords:

Links

DOI: 10.1021/nl049962k

WoS: 000220857800016

History

Received: 2004-01-06

Revised: 2004-02-05

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Cited By (17)

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2005	Gupta HS, Wagermaier W, Zickler GA, Aroush DR-B, Funari SS, Roschger P, Wagner HD, Fratzl P. Nanoscale deformation mechanisms in bone. Nano Lett. October 2005;5(10):2108-2111.
2015	Wegst UGK, Bai H, Saiz E, Tomsia AP, Ritchie RO. Bioinspired structural materials. Nat Mater. January 2015;14(1):23-36.
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2013	Poundarik A. The Role of Non-Collagenous Proteins, in Particular, Osteocalcin and Osteopontin, in the Determination of Bone Matrix Quality [PhD thesis]. Troy, NY: Rensselaer Polytechnic Institute; May 2013.
2011	Kwan M. Bioprocessing of Nacreous Coatings on Orthopedic Implant Materials [Master's thesis]. Vancouver, BC: University of British Columbia; December 2011.
2020	Maghsoudi-Ganjeh M. Computational Investigation of Ultrastructural Behavior of Bone and Bone-Inspired Materials [PhD thesis]. San Antionio, TX: University of Texas at San Antonio; May 2020.